Watermark-based image reconstruction
US12249002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2019 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Jun 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0203
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method that provides watermark-based image reconstruction to compensate for lossy encoding schemes. The method can generate a difference image describing the data loss associated with encoding an image using a lossy encoding scheme. The difference image can be encoded as a message and embedded in the encoded image using a watermark and later extracted from the encoded image. The difference image can be added to the encoded image to reconstruct the original image. As an example, an input image encoded using a lossy JPEG compression scheme can be embedded with the lost data and later reconstructed, using the embedded data, to a fidelity level that is identical or substantially similar to the original.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.